Wigner functions for angle and orbital angular momentum: Operators and dynamics

H. A. Kastrup
Phys. Rev. A 95, 052111 – Published 12 May 2017

Abstract

Recently a paper on the construction of consistent Wigner functions for cylindrical phase spaces S1×R, i.e., for the canonical pair angle and orbital angular momentum, was published [H. A. Kastrup, Phys. Rev. A 94, 062113 (2016)] in which the main properties of these functions are derived and discussed and their usefulness is illustrated with examples. The present paper is a continuation which compares the properties of the Wigner functions for cylindrical phase spaces with those of the well-known Wigner functions for planar phase spaces in more detail. Furthermore, the mutual (Weyl) correspondence between Hilbert space operators and their phase-space functions is discussed. The product formalism is shown to be completely implementable. In addition, basic dynamical laws for Wigner and Moyal functions are derived as generalized Liouville and energy equations. They are very similar to those in the planar case but also show characteristic differences.

  • Received 18 February 2017

DOI:https://doi.org/10.1103/PhysRevA.95.052111

©2017 American Physical Society

Physics Subject Headings (PhySH)

Atomic, Molecular & OpticalQuantum Information, Science & TechnologyGeneral Physics

Authors & Affiliations

H. A. Kastrup*

  • DESY, Theory Group, Notkestrasse 85, D-22607 Hamburg, Germany

  • *hans.kastrup@desy.de

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Issue

Vol. 95, Iss. 5 — May 2017

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